Sorry, but the right to free speech doesn't include a right to be published by somebody else. Twitter is a private company, they can ban or not ban whoever they see fit to. Don't like it, don't use it.
Thanks captain obvious, for appearing in the nick of time! Oh wait, no, you're arguing a strawman that was tossed since the beginning of the thread. Nobody has argued twitter should be forced by law to let him tweet, or that he has some right to do so. They have a right to ban him, we have a right to call them out on their hypocritical bs.
I'd also be curious if you'd use the same logic when other businesses want to refuse service to someone who's views they don't like. ("don't like it, don't use it")